7685438115 has 16 divisors (see below), whose sum is σ = 13020036768. Its totient is φ = 3857788416.

The previous prime is 7685438113. The next prime is 7685438141. The reversal of 7685438115 is 5118345867.

It is not a de Polignac number, because 7685438115 - 2¹ = 7685438113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7685438113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15069232 + ... + 15069741.

It is an arithmetic number, because the mean of its divisors is an integer number (813752298).

Almost surely, 2^7685438115 is an apocalyptic number.

7685438115 is a deficient number, since it is larger than the sum of its proper divisors (5334598653).

7685438115 is a wasteful number, since it uses less digits than its factorization.

7685438115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30138998.

The product of its digits is 806400, while the sum is 48.

The square root of 7685438115 is about 87666.6305671662. The cubic root of 7685438115 is about 1973.4352282353.

The spelling of 7685438115 in words is "seven billion, six hundred eighty-five million, four hundred thirty-eight thousand, one hundred fifteen".